alert http any any -> $HOME_NET any (
msg:"ET WEB_SPECIFIC_APPS D-Link hi_block.asp Multiple Parameters Buffer Overflow Attempt (CVE-2025-11338, CVE-2025-11339)";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/webchat/hi_block.asp|3f|"; startswith; fast_pattern;
pcre:"/(?:popupId|openid)\x3d[^&]{100,}(?:&|$)/";
reference:url,www.yuque.com/jh0ng/vmpda6/zr11zfssl8h74bn3#password%20is%20%22gstn%22;
reference:cve,2025-11338;
reference:cve,2025-11339;
reference:url,www.yuque.com/jh0ng/vmpda6/kggo2ngrcphzvwml#password%20is%20%22orn0%22;
classtype:web-application-attack;
sid:2065060; rev:1;
metadata:affected_product D_Link, attack_target Networking_Equipment, tls_state plaintext, created_at 2025_10_06, cve CVE_2025_11338_CVE_2025_11339, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_06, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
target:dest_ip;
)